b, IgG <1:64 i --INTERPRETIVE MS092447104: Bartonella quintana Antibody, IgG Less than 1:64 Negative: No significant level of I .. Bartonella quintana XgG antibody detected. ; 1:64 - 1:123 Equivocal: Questionable presence of Bartonella quintana IgG antibody detected. Repeat tasting in 10-14 day